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首页> 外文学位 >Hedonic analysis of yearling bull prices for a land grant university: Determining the value of a Pulmonary Arterial Pressure (PAP) score.
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Hedonic analysis of yearling bull prices for a land grant university: Determining the value of a Pulmonary Arterial Pressure (PAP) score.

机译：土地赠与大学的一岁牛市价格的享乐主义分析：确定肺动脉压（PAP）得分的值。

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摘要

Producers look for various traits in seedstock bulls to enhance their herds and will often pay a premium for those traits. One particular physical trait which is of interest to producers in the mountainous western United States is for cattle that can thrive at a high altitude. Cattle in this environment can be prone to developing High Altitude Disease (HAD) which has been shown to cause weakness, lethargy, and death. Pulmonary Arterial Pressure (PAP) is a test used to detect the likelihood of an animal of developing HAD. The test provides a score from 30 to 130 with scores over 45 indicating an animal is more likely to develop the disease.;Colorado State University specializes in cattle genetics; and in particular, manages a herd that has low PAP scores, strong early growth, fertility, and maternal ability. The center holds an annual auction to sell their yearling bulls each spring. Data was collected from three years of sales (2011, 2012, and 2013), and hedonic models were estimated using ordinary least squares (OLS) to determine the value of simple performance measurements (SPM), expected progeny differences (EPD), and marketing factors of the yearling bulls sold at these auctions.;In one model, a continuous variable for PAP score was found to be significant and have a negative relationship with sale price. In a second model, a dummy variable for a PAP score under 46 was shown to be significant and have a positive relationship with sale price. In a third model using standardized continuous variables, PAP score was shown to have the most influence on sales price, followed by EPD for yearling weight, frame score, and EPD for stayability. The results suggest that producers are willing to pay a premium for a low PAP score.
机译：生产者在种公牛中寻找各种性状以增强其牛群，并且通常会为这些性状付出高价。美国西部山区的生产者感兴趣的一种特殊的物理性状是可以在高海拔地区繁衍的牛。在这种环境下，牛容易出现高海拔疾病（HAD），已被证明会引起虚弱，嗜睡和死亡。肺动脉压（PAP）是一种用于检测动物发展HAD可能性的测试。该测试的得分在30到130之间，得分在45以上，表明动物更容易患上这种疾病。尤其是管理着PAP分数低，早期生长力强，生育能力和产妇能力强的牛群。该中心每年举行一次年度拍卖，出售他们的一岁公牛。收集了三年销售量（2011年，2012年和2013年）的数据，并使用普通最小二乘法（OLS）估算了享乐主义模型，以确定简单性能指标（SPM），预期后代差异（EPD）和市场营销的价值在这些拍卖中出售的一岁多头公牛的因素。；在一个模型中，发现PAP分数的连续变量很重要，并且与售价成负相关。在第二个模型中，PAP得分低于46的虚拟变量被证明是显着的，并且与售价成正比。在使用标准化连续变量的第三个模型中，PAP得分对销售价格的影响最大，其次是一岁体重的EPD，框架得分和持久性的EPD。结果表明，生产者愿意为低PAP分数支付溢价。

著录项

  • 作者

    Kessler, Beth A.;

  • 作者单位

    Colorado State University.;

  • 授予单位 Colorado State University.;
  • 学科 Agricultural economics.
  • 学位 M.S.
  • 年度 2013
  • 页码 41 p.
  • 总页数 41
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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